ducted-fan jet engine

例句：

1. 1. The new ducted-fan jet engine has significantly improved the efficiency of our aircraft.
   新型导管风扇喷气式发动机大大提高了我们的飞机效率。
2. 2.The ducted-fan jet engine is a key component in the design of modern aviation engines.
   导管风扇喷气式发动机是现代航空发动机设计的关键组成部分。
3. 3.Due to its high efficiency and low noise level, the ducted-fan jet engine has become a popular choice for commercial aircraft.
   由于其高效率和低噪音水平，导管风扇喷气式发动机已成为商业飞机的热门选择。